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Export to HTML failed because of "ValueError: path is on mount 'C:', start on mount 'D:'"

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OS (e.g. Win10): win10
PsychoPy version (e.g. 1.84.x): psychopy3 beta9.0.0
Standard Standalone? (y/n) If not then what?:yes
What are you trying to achieve?:
export to HTML
What did you try to make it work?:

What specifically went wrong when you tried that?:
When I tried to export to HTML in the latest version beta9.0.0, it failed and the output message is below:

I tried to copy it to disk C and export again ,it succeeded,however, when my file is in disk D, it failed. I did not meet such problem in previous version, it appeared when I updated to 9.0.0